| 01 | Cadillac V-Series.R | Cadillac Racing | yellow/black (+red) | CADILLAC | Michelin | Mobil 1 | closed | mid |
| 04 | Oreca 07 Gibson | Crowdstrike Racing by APR | red/grey | CROWDSTRIKE/Accel | Michelin | | closed | mid |
| 1 | BMW M4 GT3 | Paul Miller Racing | white/black/red | TOTAL/UIS/Paul Miller Auto Group/Quartz | Michelin | | closed | front |
| 3 | Chevrolet Corvette C8.R GTD | Corvette Racing | yellow/grey | Mobil 1/Sirius XM | Michelin | | closed | mid |
| 5 | Porsche 963 | JDC Miller MotorSports | yellow (+black) | JDC/PORSCHE/TROFI PACK/S3s/wiha | Michelin | | closed | mid |
| 6 | Porsche 963 | Porsche Penske Motorsports | red/white (+black) | PORSCHE 963/PENSKE/Ansys/TAG HEUER | Michelin | | closed | mid |
| 7 | Porsche 963 | Porsche Penske Motorsports | red/white/black | PORSCHE 963/PENSKE/Ansys/TAG HEUER | Michelin | Mobil 1 | closed | mid |
| 8 | Oreca 07 Gibson | Tower Motorsports | orange/black/white | Tower Events | Michelin | | closed | mid |
| 9 | Porsche 992 GT3 R | Pfaff Motorsports | red/black | Driveway/Motul/Motomaster/Simoniz/Pfaff Porsche | Michelin | | closed | rear |
| 10 | Acura ARX-06 | Konica Minolta Acura ARX-06 | blue/black | Konica Minolta | Michelin | | closed | mid |
| 11 | Oreca 07 Gibson | TDS Racing | yellow/red/black | Fear the TAF | Michelin | | closed | mid |
| 12 | Lexus RC F GT3 | Vasser Sullivan | black/green | Sealmaster/Mark Levinson | Michelin | | closed | front |
| 14 | Lexus RC F GT3 | Vasser Sullivan | black/green | Sealmaster/Mark Levinson | Michelin | | closed | front |
| 18 | Oreca 07 Gibson | Era Motorsport | blue/yellow/black | Motul/Sparco/Control IO | Michelin | | closed | mid |
| 20 | Oreca 07 Gibson | High Class Racing | white/red/black | Polar Seafood/Mascot Workwear/HRX | Michelin | | closed | mid |
| 23 | Aston Martin Vantage AMR GT3 | Heart of Racing Team | blue/yellow | The Heart of Racing | Michelin | | closed | front |
| 24 | BMW M Hybrid V8 | BMW M Team RLL | white/blue/red | BMW of North America/IQOO/Global Medical Response | Michelin | | closed | mid |
| 25 | BMW M Hybrid V8 | BMW M Team RLL | white/blue/red | BMW of North America/IQOO/Global Medical Response | Michelin | | closed | mid |
| 27 | Aston Martin Vantage AMR GT3 | Heart of Racing Team | blue/yellow | Heart of Racing | Michelin | | closed | front |
| 31 | Cadillac V-Series.R | Whelen Engineering Cadillac Racing | red/black (+white/yellow) | WHELEN/CADILLAC | Michelin | Mobil 1 | closed | mid |
| 32 | Mercedes-AMG GT3 | Team Korthoff Motorsports | silver/black/blue | | Michelin | | closed | front |
| 35 | Oreca 07 Gibson | TDS Racing | yellow/red/black | Carlac Minerals | Michelin | | closed | mid |
| 44 | Aston Martin Vantage AMR GT3 | Magnus Racing | blue/grey | Flex Box | Michelin | | closed | front |
| 51 | Oreca 07 Gibson | Rick Ware Racing | white/green/blue | Biohaven/Pronto/Rembrandt Charms | Michelin | | closed | mid |
| 52 | Oreca 07 Gibson | PR1 Mathiasen Motorsports | purple/pink/orange | Wynns/Max Connect/rainX | Michelin | | closed | mid |
| 57 | Mercedes-AMG GT3 | Winward Racing | black/blue | Techemet/First Horizon | Michelin | | closed | front |
| 60 | Acura ARX-06 | Meyer Shank Racing w/ Curb Agajanian | white/pink/black (+blue) | Autonation/Sirius XM/Curb Records | Michelin | | closed | mid |
| 66 | Acura NSX GT3 | Gradient Racing | white/green | JG Wentworth 877CASHNOW.com/Acura/HPD | Michelin | | closed | mid |
| 70 | McLaren 720S GT3 Evo | Inception Racing | black/red | Pedal Mafia/AVORAK | Michelin | | closed | mid |
| 77 | Porsche 992 GT3 R | Wright Motorsports | yellow/black | Volt Lighting/Matter | Michelin | | closed | rear |
| 78 | Lamborghini Huracán GT3 Evo2 | Forte Racing Powered by USRT | black/green | ARROW/GoBolt/O'Gara/Change Racing/Luvv | Michelin | | closed | mid |
| 79 | Mercedes-AMG GT3 | WeatherTech Racing | white(red/blue) | Weathertech | Michelin | | closed | front |
| 80 | Porsche 992 GT3 R | AO Racing | green | | Michelin | | closed | rear |
| 91 | Porsche 992 GT3 R | Kellymoss with Riley | grey/yellow | Pagid Racing | Michelin | | closed | rear |
| 92 | Porsche 992 GT3 R | Kellymoss with Riley | pink/white/purple (+orange) | Thu Brule' Skincare | Michelin | | closed | rear |
| 94 | Aston Martin Vantage AMR GT3 | Andretti Autosport | red/grey | Harrison Contracting Company/HPD/PPG Paints/HPD Academy/OMP | Michelin | | closed | front |
| 96 | BMW M4 GT3 | Turner Motorsport | white/red/blue | Liqui Moly/H&R | Michelin | | closed | front |
| 97 | BMW M4 GT3 | Turner Motorsport | black/blue | McIntosh | Michelin | | closed | front |